We all joke about it, but it's a pretty serious issue. The next upgrade will never bring you the happiness you are hoping it will. It is the human condition to want the better thing you don't have, then adjust to that better thing as normal once you have it and crave the next thing. It can be fun and exhilirating if kept in check, but awful if you not. You've got to be able to get off the treadmill and enjoy what you have. A hobby can easily turn into a life-ruining obsession. You are seeking the perfect system, which does not exist (just as the perfect woman does not exist). Trying to obtain it is futile and will drive you insane.
Ask yourself what unmet emotional need you are avoiding by chasing the perfect stereo system.
Ask yourself what unmet emotional need you are avoiding by chasing the perfect stereo system.